A 20-year-old man was shot in the face, and a 19-year-old man was shot in the leg, Lawhead said. Both are expected to survive.

A 15-year-old boy was shot in the neck and is believed to be paralyzed, police said. The three injured males are residents of San Bernadino.

Officers responded about 6:51 p.m. to the 2900 block of North Loma Avenue (map), where they found the injured at different locations in the area. All four were transported to a hospital, where the woman underwent surgery, according to authorities.

Witnesses identified the shooter to be the man who was shot in the leg, Lawhead said. The 19-year-old was arrested at the hospital where he was being treated.

There is evidence that an additional shooter may have been at the scene but has not been identified, Lawhead added.

The shooting did not appear to be gang-related, according to investigators, based on comments made by the suspected gunman prior to the incident.

The names of the victims and suspect were not released due to an ongoing investigation, police said.

Anyone with information is asked to contact Detective Steve Turner at 909-384-5647 or Sgt. Gary Robertson at 909-841-5361.